Infrared signal detector



FIG. 1 is a reduced front perspective view of an infrared signaldetector showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof, with left side being amirror image, and with the wires broken away to indicate indeterminatelength;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The ornamental design for infrared signal detector, as shown anddescribed.